Zip Code: 21821 (Deal Island, MD) - Trend of Active Listing Count of Houses (Realtor)
Updated on March 13, 2026.

According to data from Realtor.com, the active listing count of houses in the 21821 Zip Code in February 2026 was 10. The month over month percentage change (MoM) was 0.1111%, and the year over year percentage change (YoY) was 0.8182%.

You can see similar for other Maryland Zip Codes, and for Maryland.

The chart below shows the trend of active listing count in the 21821 zip code. The table below shows the trend, and the MoM and YoY percentage changes.

Data Source: Realtor.
Zip Code: 21821 - Trend of Active Listing Count of Houses
Zip Code: 21821 Trend of Active Listing Count of Houses
Items per page:
1 – 10 of 116
Month Active Listing Count MoM Perc. Change (%) YoY Perc. Change (%)
Aug 2016 19
Sep 2016 22
Oct 2016 26
Nov 2016 26
Dec 2016 24
Jan 2017 20
Feb 2017 22
Mar 2017 25
Apr 2017 24
May 2017 26
Jun 2017 28
Jul 2017 31
Aug 2017 32 0.0492 0.6842
Sep 2017 29 -0.1094 0.3256
Oct 2017 26 -0.0877 0.0
Nov 2017 24 -0.0769 -0.0769
Dec 2017 24 -0.0208 0.0
Jan 2018 24 0.0213 0.2
Feb 2018 20 -0.1667 -0.0909
Mar 2018 21 0.05 -0.1429
Apr 2018 23 0.0952 -0.0417
May 2018 23 -0.0217 -0.1346
Jun 2018 21 -0.0889 -0.2545
Jul 2018 21 0.0244 -0.3115
Aug 2018 27 0.2857 -0.1563
Sep 2018 26 -0.0556 -0.1053
Oct 2018 27 0.0588 0.0385
Nov 2018 27 -0.0185 0.1042
Dec 2018 27 0.0 0.1277
Jan 2019 21 -0.2075 -0.125
Feb 2019 18 -0.1667 -0.125
Mar 2019 17 -0.0286 -0.1905
Apr 2019 18 0.0588 -0.2174
May 2019 22 0.1944 -0.0444
Jun 2019 21 -0.0465 0.0
Jul 2019 21 0.0244 0.0
Aug 2019 17 -0.1905 -0.3704
Sep 2019 17 0.0 -0.3333
Oct 2019 18 0.0588 -0.3333
Nov 2019 18 -0.0278 -0.3396
Dec 2019 17 -0.0286 -0.3585
Jan 2020 15 -0.1176 -0.2857
Feb 2020 18 0.1667 0.0
Mar 2020 17 -0.0286 0.0
Apr 2020 19 0.0882 0.0278
May 2020 21 0.1351 -0.0233
Jun 2020 20 -0.0476 -0.0244
Jul 2020 19 -0.05 -0.0952
Aug 2020 17 -0.1053 0.0
Sep 2020 13 -0.2353 -0.2353
Oct 2020 13 -0.0385 -0.3056
Nov 2020 13 0.04 -0.2571
Dec 2020 10 -0.2308 -0.4118
Jan 2021 12 0.2 -0.2
Feb 2021 11 -0.0833 -0.3714
Mar 2021 10 -0.0909 -0.4118
Apr 2021 10 0.0 -0.4595
May 2021 10 0.0 -0.5238
Jun 2021 9 -0.1 -0.55
Jul 2021 7 -0.2778 -0.6579
Aug 2021 5 -0.2308 -0.7059
Sep 2021 3 -0.4 -0.7692
Oct 2021 6 0.8333 -0.56
Nov 2021 8 0.4545 -0.3846
Dec 2021 12 0.5 0.2
Jan 2022 13 0.0833 0.0833
Feb 2022 9 -0.3077 -0.1818
Mar 2022 10 0.1111 0.0
Apr 2022 8 -0.2 -0.2
May 2022 8 0.0 -0.2
Jun 2022 8 0.0 -0.1111
Jul 2022 10 0.25 0.5385
Aug 2022 7 -0.3 0.4
Sep 2022 9 0.2857 2.0
Oct 2022 8 -0.1667 0.3636
Nov 2022 6 -0.2 -0.25
Dec 2022 9 0.4167 -0.2917
Jan 2023 8 -0.0588 -0.3846
Feb 2023 7 -0.125 -0.2222
Mar 2023 9 0.2143 -0.15
Apr 2023 14 0.5882 0.6875
May 2023 14 0.037 0.75
Jun 2023 11 -0.25 0.3125
Jul 2023 7 -0.381 -0.35
Aug 2023 8 0.2308 0.1429
Sep 2023 9 0.0625 -0.0556
Oct 2023 7 -0.1765 -0.0667
Nov 2023 9 0.2143 0.4167
Dec 2023 9 0.0588 0.0588
Jan 2024 10 0.1111 0.25
Feb 2024 9 -0.15 0.2143
Mar 2024 6 -0.2941 -0.2941
Apr 2024 4 -0.3333 -0.7037
May 2024 6 0.5 -0.5714
Jun 2024 9 0.5 -0.1429
Jul 2024 10 0.1111 0.5385
Aug 2024 11 0.1 0.375
Sep 2024 10 -0.0909 0.1765
Oct 2024 12 0.2 0.7143
Nov 2024 15 0.25 0.7647
Dec 2024 9 -0.4 0.0
Jan 2025 7 -0.2222 -0.3
Feb 2025 5 -0.3571 -0.4706
Mar 2025 6 0.2222 -0.0833
Apr 2025 7 0.2727 0.75
May 2025 10 0.3571 0.5833
Jun 2025 8 -0.1579 -0.1111
Jul 2025 10 0.25 0.0
Aug 2025 10 0.0 -0.0909
Sep 2025 12 0.2 0.2
Oct 2025 13 0.0833 0.0833
Nov 2025 13 0.0 -0.1333
Dec 2025 11 -0.1538 0.2222
Jan 2026 11 0.0 0.5714
Feb 2026 9 -0.1818 1.0
Mar 2026 10 0.1111 0.8182